pointerContainer.hpp

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#ifndef OPENPOSE_UTILITIES_POINTER_CONTAINER_HPP
#define OPENPOSE_UTILITIES_POINTER_CONTAINER_HPP

namespace op
{
    template<typename TPointerContainer>
    inline bool checkNoNullNorEmpty(const TPointerContainer& tPointerContainer)
    {
        return (tPointerContainer != nullptr && tPointerContainer->size() > 0);
    }

    template<typename TDatums>
    class PointerContainerGreater
    {
    public:
        bool operator() (TDatums& a, TDatums& b)
        {
            if (!b || b->empty())
                return true;
            else if (!a || a->empty())
                return false;
            else
                return (*a)[0] > (*b)[0];
        }
    };

    template<typename TDatums>
    class PointerContainerLess
    {
    public:
        bool operator() (TDatums& a, TDatums& b)
        {
            if (!b || b->empty())
                return false;
            else if (!a || a->empty())
                return true;
            else
                return (*a)[0] < (*b)[0];
        }
    };
}

#endif // OPENPOSE_UTILITIES_POINTER_CONTAINER_HPP